PIC32MZ: Add peripheral pin selection register definitions

arch/mips/src/pic32mz/chip/pic32mz-pps.h

@@ -0,0 +1,107 @@
+/********************************************************************************************
+ * arch/mips/src/pic32mz/pic32mz-pps.h
+ *
+ *   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ********************************************************************************************/
+
+#ifndef __ARCH_MIPS_SRC_PIC32MZ_CHIP_PIC32MZ_PPS_H
+#define __ARCH_MIPS_SRC_PIC32MZ_CHIP_PIC32MZ_PPS_H
+
+/********************************************************************************************
+ * Included Files
+ ********************************************************************************************/
+
+#include <nuttx/config.h>
+
+/********************************************************************************************
+ * Pre-processor Definitions
+ ********************************************************************************************/
+/* PPS Register Offsets/Addresses ***********************************************************/
+
+/* Depends on the peripherals supported by the particular device */
+
+#if defined(CONFIG_ARCH_CHIP_PIC32MZEC)
+#  include "chip/pic32mzec-pps.h"
+#else
+#  error Unknown PIC32MZ family
+#endif
+
+/* PPS Register Bit Field Definitions *************************************(*****************/
+/* All registers contain a single 4 bit field (bits 0-3) holding the peripheral pin
+ * selection.
+ */
+
+#define PPS_MASK 0x0000000f
+
+/* Pin Selection Helper Macros **************************************************************/
+/* The encoding of the input pin selection is simple.  Since we know the devices, we also
+ * can infer the register address so we need only the value for the register which is
+ * exactly what is provided by macro definitions.
+ *
+ * The encoding of the output pin selection is a little more complex.  Knowing the device
+ * does not provide sufficient information.  The output pin definitions include both the
+ * register value and the register address and the following helper macros can be used
+ * extract one or the other.
+ */
+
+#define PPS_OUTPUT_REGADDR(a,b) (b)
+#define PPS_OTUPUT_REVAL(a,b)   (a)
+
+/********************************************************************************************
+ * Public Types
+ ********************************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/********************************************************************************************
+ * Public Data
+ ********************************************************************************************/
+
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/********************************************************************************************
+ * Public Function Prototypes
+ ********************************************************************************************/
+
+#undef EXTERN
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __ARCH_MIPS_SRC_PIC32MZ_CHIP_PIC32MZ_PPS_H */